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diff --git a/docs/userguide/scenario-apex-os-nosdn-fdio-noha.rst b/docs/userguide/scenario-apex-os-nosdn-fdio-noha.rst new file mode 100755 index 0000000..b863aee --- /dev/null +++ b/docs/userguide/scenario-apex-os-nosdn-fdio-noha.rst @@ -0,0 +1,110 @@ +.. OPNFV - Open Platform for Network Function Virtualization +.. This work is licensed under a Creative Commons Attribution 4.0 International License. +.. http://creativecommons.org/licenses/by/4.0 + +Scenario: "OpenStack - FD.io" +============================= + +Scenario: apex-os-nosdn-fdio-noha + +"apex-os-nosdn-noha" is a scenario developed as part of the FastDataStacks +OPNFV project. The main components of the "apex-os-nosdn-fdio-noha" scenario +are: + + - APEX (TripleO) installer (please also see APEX installer documentation) + - Openstack (in non-HA configuration) + - FD.io/VPP virtual forwarder for tenant networking + +Scenario Overview +================== + +Basics +------ + +The "Openstack - FD.io/VPP" scenario provides the capability to realize a set +of use-cases relevant to the deployment of NFV nodes instantiated by means of +an Openstack orchestration system on FD.io/VPP enabled compute nodes. + +A deployment of the "apex-os-nosdn-fdio-noha" scenario consists of 3 or more +servers: + + * 1 Jumphost hosting the APEX installer - running the Undercloud + * 1 Controlhost, which runs the Overcloud and Openstack services + * 1 or more Computehosts + +.. image:: FDS-nosdn-overview.png + +Tenant networking leverages FD.io/VPP. Open VSwitch (OVS) is used for all other +connectivity, in particular the connectivity to public networking / the +Internet (i.e. br-ext) is performed via OVS as in any standard OpenStack +deployment. A VPP management agent is used to setup and manage layer 2 +networking for the scenario. Tenant networking can either leverage VLANs or +plain interfaces. Layer 3 connectivity for a tenant network is provided +centrally via qrouter on the control node. As in a standard OpenStack +deployment, the Layer3 agent configures the qrouter and associated rulesets for +security (security groups) and NAT (floating IPs). Public IP network +connectivity for a tenant network is provided by interconnecting the VPP-based +bridge domain representing the tenant network to qrouter using a tap interface. +The setup is depicted below: + +Features of the scenario +------------------------ + +Main features of the "apex-os-odl_l2-fdio-noha" scenario: + + * Automated installation using the APEX installer + * Fast and scalable tenant networking using FD.io/VPP as forwarder + * Layer 2 networking using VLANs, managed and controlled + through the VPP ML2 plugin + * Layer 3 connectivitiy for tenant networks supplied centrally + on the Control node through standard OpenStack mechanisms. + All layer 3 features apply, including floating IPs (i.e. NAT) + and security groups. + +Networking in this scenario using VPP +------------------------------------- + +The apex-os-nosdn-fdio-noha scenario combines components from two key open +source projects: OpenStack and Fast Data (FD.io). In order to make Fast Data +(FD.io) networking available to this scenario, an ML2 mechanism driver and a +light-weight control plane agent for VPP forwarder has been created. For +details see also https://github.com/naveenjoy/networking-vpp/ + +Networking-vpp provides a Neutron ML2 mechanism driver to bring the advantages +of VPP to OpenStack deployments. + +It's been written to be as simple and readable as possible, which means it's +naive; the aim was not to write the most efficient mechanism driver ever from +right out of the gate, but to write something simple and understandable and see +how well it works and what needs to be changed. + +As a general rule, everything was implemented in the simplest way, for two +reasons: one is that one sees working results the quickes, and the other is +that it's much easier to replace a simple system with a more complex one than +it is to change a complex one. The current design will change, but the one +that's there at the moment is small and easy to read, even if it makes you pull +faces when you read it. + +Scenario Configuration +====================== + +To enable the "apex-os-nosdn-fdio-noha" scenario check the appropriate settings +in the APEX configuration files. Those are typically found in /etc/opnfv-apex. + +File "deploy_settings.yaml" choose opendaylight as controller with version +"boron" and enable vpp as forwarder:: + + global_params: + ha_enabled: false + + deploy_options: + sdn_controller: false + sdn_l3: false + tacker: false + congress: false + sfc: false + vpn: false + vpp: true + +Notes and known issues +====================== |